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δ Trianguli Australis (delta Trianguli Australis)

Below the horizon. Never rises today

Alt: -76.32° Az: 158.07° Direction: South-South-East

δ Trianguli Australis is a double supergiant star of spectral class G2 in the constellation of Triangulum Australe.

δ Trianguli Australis visual magnitude is 3.85. Because of its moderate brightness, δ Trianguli Australis is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of δ Trianguli Australis (delta Trianguli Australis) star

DSS2 image of δ Trianguli Australis. The red arrow shows the motion of δ Trianguli Australis during the next 10000 years (0.33 arcmin in Right Ascension and -1.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 16h 17m 42s

Declination -63° 44’ 44”

Hour Angle 12h 46m 04s

Sideral Time 05h 03m 47s

J2000

Right Ascension 16h 15m 26s

Declination -63° 41’ 08”

Galactic Coordinates

Galactic Longitude 323.36°

Galactic Latitude -9.23°

Finder Chart

Simplified finder chart for δ Trianguli Australis (delta Trianguli Australis).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.85

Class Supergiant

Absolute magnitude -2.55

Spectral Type G2I

Color Index (B-V) 1.11

Temperature 4493K

The red dot in the diagram below shows where δ Trianguli Australis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of δ Trianguli Australis. Attribution: Richard Powell / CC BY-SA

Star System Properties

δ Trianguli Australis is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the δ Trianguli Australis double sysyem:

Main star magnitude 3.85

Secondary star magnitude 11.85

Magnitude difference 8

Separation 30 arcsec

Distance, Radial Speed, Proper Motion

δ Trianguli Australis is distant 620.95 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

Distance (parsec) 190.48

Distance (light year) 620.95

Radial Speed -5 km/s

Proper Motion RA 0.002 arcsec/y

Proper Motion Dec -0.011"/y

Alternative Designations

Bayer designation δ Trianguli Australis
(delta Trianguli Australis)

Henry Draper Catalogue HD145544

SAO Catalogue SAO253474

Hipparcos Catalogue HIP79664

Durchmusterung Catalogue CP-63 3854

FK5 Catalogue 602

Visibility from Your Location

δ Trianguli Australis (delta Trianguli Australis) is currently not visible from Greenwich, UK

Set Location

Other stars in Triangulum Australe